64411189 has 2 divisors, whose sum is σ = 64411190. Its totient is φ = 64411188.

The previous prime is 64411183. The next prime is 64411229. The reversal of 64411189 is 98111446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44116164 + 20295025 = 6642^2 + 4505^2 .

It is a cyclic number.

It is not a de Polignac number, because 64411189 - 2⁵ = 64411157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64411183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32205594 + 32205595.

It is an arithmetic number, because the mean of its divisors is an integer number (32205595).

Almost surely, 2^64411189 is an apocalyptic number.

It is an amenable number.

64411189 is a deficient number, since it is larger than the sum of its proper divisors (1).

64411189 is an equidigital number, since it uses as much as digits as its factorization.

64411189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 34.

The square root of 64411189 is about 8025.6581661568. The cubic root of 64411189 is about 400.8548156741.

The spelling of 64411189 in words is "sixty-four million, four hundred eleven thousand, one hundred eighty-nine".